Park Jun-Beom, Jeon Yongpyo, Ko Youngkyung
Department of Periodontics, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Clin Oral Implants Res. 2015 Feb;26(2):130-6. doi: 10.1111/clr.12302. Epub 2013 Dec 2.
Mechanical techniques, including scaling with metal, plastic, or ultrasonic instruments, rubber cup polishing, air-powder abrasive system and brushing with a conventional or a rotating brush, have been used for the debridement of dental implants. Recently, rotating brushes with titanium bristles (titanium brush) have been introduced for the debridement of implant surface when peri-implant osseous defects occur. The purpose of this study was to evaluate the effects of a titanium brush on machined (MA) and sand-blasted and acid-etched (SA) titanium surfaces using scanning electron microscopy, confocal microscopy and profilometry. Moreover, correlations between the two quantitative evaluation methods (confocal microscopy and contact profilometry) were assessed.
Both MA and SA discs were treated with rotating titanium brush at 300 rpm under irrigation for a total of 40 s. Roughness measurements were taken with confocal microscopy and surface profilometry. Then, the MA and SA surfaces were evaluated using scanning electron microscopy to determine the changes of the surface properties.
Untreated MA surface demonstrated uniform roughness with circumferential machining marks, and scratch lines over the original surfaces were observed after treatment with the titanium brush. Similarly, the titanium brush produced noticeable changes on the SA titanium surfaces. However, this treatment with titanium brush did not significantly change the roughness parameters, including the arithmetic mean height of the surface (Sa) and the maximum height of the surface (Sz), in both MA and SA surfaces. Correlations between two evaluation methods showed a Pearson correlation coefficient of 0.98 with linear regression R(2) of 0.96.
This study showed that the treatment with the titanium brush did not significantly change the roughness parameters, including Sa and Sz, in both MA and SA surfaces. Correlations between confocal microscopy and surface profilometry showed high correlation with a Pearson correlation coefficient of 0.98.
机械技术，包括使用金属、塑料或超声器械进行洁治、橡皮杯抛光、气粉磨蚀系统以及使用传统或旋转刷进行刷牙，已被用于牙种植体的清创。最近，当种植体周围出现骨缺损时，已引入带有钛刷毛的旋转刷（钛刷）用于种植体表面的清创。本研究的目的是使用扫描电子显微镜、共聚焦显微镜和轮廓仪评估钛刷对机械加工（MA）和喷砂及酸蚀（SA）钛表面的影响。此外，还评估了两种定量评估方法（共聚焦显微镜和接触轮廓仪）之间的相关性。
MA和SA盘均在冲洗下以300 rpm的转速用旋转钛刷处理，总共处理40秒。使用共聚焦显微镜和表面轮廓仪进行粗糙度测量。然后，使用扫描电子显微镜评估MA和SA表面，以确定表面性能的变化。
未处理的MA表面显示出均匀的粗糙度，带有圆周加工痕迹，用钛刷处理后在原始表面上观察到划痕线。同样，钛刷在SA钛表面产生了明显的变化。然而，这种用钛刷的处理在MA和SA表面均未显著改变粗糙度参数，包括表面的算术平均高度（Sa）和表面的最大高度（Sz）。两种评估方法之间的相关性显示皮尔逊相关系数为0.98，线性回归R²为0.96。
本研究表明，用钛刷处理在MA和SA表面均未显著改变粗糙度参数，包括Sa和Sz。共聚焦显微镜和表面轮廓仪之间的相关性显示出高度相关性，皮尔逊相关系数为0.98。
